TWINE: discrete mode 'tiptoe' sound effect is always same pitch when moving

[Bobblen147]

Moving in discrete mode plays a sound effect for each step taken. In the DOS version, when holding down the move key, the sound for each step is played at a different pitch (seemingly at random, the effect is to make it roughly sound like someone tiptoeing in an old cartoon)

In SCUMMVM, the sound is always the same pitch for every step taken.

[mgerhardy]

3afb6333b9af8e887f39a0be8dbe534077c7177a adds the pitchbend values to the playSample calls - but the value itself is still unused.

[mgerhardy]

should be fixed in ca2f2071c2e23c2f6847a83e71be1050762cf35e